exFAT vs NTFS vs APFS/HFS+ vs ext4: Which File System to Use
NTFS, exFAT, APFS/HFS+ and ext4 compared, which operating systems can read and write each, and which to pick for USB drives, Macs and Linux servers.
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NTFS Explained: Features, Limits, Permissions and Repair
How NTFS works inside, the features admins use (ACLs, journaling, compression, EFS, shadow copies), its limits, and how to inspect and repair a volume.
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Free Microsoft Exam Voucher Next Week — 16 Certs, Live Training, and 11 Sessions Are Already Full
Microsoft is running a free, live Certification Week from 28 Sep to 2 Oct (IST), and you can walk away with a free exam voucher. There’s a catch or two, and most seats are already gone. Here’s what’s still open and which cert I’d pick.
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Common Misconfigurations That Get Servers Popped
Most breaches don’t start with a novel exploit. They start with a default password, an exposed admin panel, or a stray .env file. The defensive checklist I actually run.
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Reading a CVE Like a Sysadmin: What Actually Matters in a Security Advisory
A CVSS score alone isn’t a patch decision. Here’s how to actually read an advisory, check whether it applies to what you run, and decide how urgently to act.
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Setting Up a Legal Bug Bounty Practice Lab
PortSwigger Web Security Academy, OWASP Juice Shop, DVWA and a properly isolated VM setup — everything you need to practice exploitation legally before your first real program.
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Bug Bounty Hunting for Sysadmins: Where to Actually Start
Your infrastructure background is a real advantage in bug bounty hunting. Here’s what to learn first, how scope and authorization actually work, and where to practice legally.
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REST API Healthchecks for Ops: Timeouts and Monitoring
Design and monitor API healthchecks with timeouts, dependency honesty, and alerts that wake the right human.
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OWASP API Top 10 Through an Ops Lens (No Exploits)
High-level OWASP API Top 10 for operators: exposure, auth misconfig, inventory, and monitoring — no attack steps.
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API Security Basics for Sysadmins (Ops View)
What ops must know about APIs: TLS, authn/z, secrets, rate limits, inventory — defensive and high-level.
